47319780 has 48 divisors (see below), whose sum is σ = 135584064. Its totient is φ = 12324480.

The previous prime is 47319773. The next prime is 47319791. The reversal of 47319780 is 8791374.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6591 + ... + 11750.

It is an arithmetic number, because the mean of its divisors is an integer number (2824668).

Almost surely, 2^47319780 is an apocalyptic number.

It is an amenable number.

47319780 is an abundant number, since it is smaller than the sum of its proper divisors (88264284).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

47319780 is a wasteful number, since it uses less digits than its factorization.

47319780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18396 (or 18394 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 39.

The square root of 47319780 is about 6878.9374179447. The cubic root of 47319780 is about 361.6992200542.

The spelling of 47319780 in words is "forty-seven million, three hundred nineteen thousand, seven hundred eighty".